For the new followers, here's my blog post with strategies for fostering active learning in hybrid and socially distanced classrooms: https://cft.vanderbilt.edu/2020/06/active-learning-in-hybrid-and-socially-distanced-classrooms/. Most are useful for synchronous online classes (e.g. Zoom), as well.
For a quick intro to engaged students via live polling, see my 2009 essay "Multiple-Choice Questions You Wouldn't Put on a Test," https://podnetwork.org/content/uploads/V21-N3-Bruff.pdf. And for more ideas, there's that book I wrote: https://derekbruff.org/?page_id=3475 .
For some ideas for using text chat during synchronous online classes (e.g. Zoom), see my blog post "Backchannel in Education -Nine Uses," https://derekbruff.org/?p=472 .
And for more ideas for online and hybrid teaching this fall, see this overview of resources from the fantastic @VandyCFT team: https://cft.vanderbilt.edu/preparing-for-fall-2020-resource-overview/. Seriously, we have such a great team at the CFT!
Thanks to @joshua_r_eyler for tagging me in his fantastic thread on engaging students in synchronous online classes. I think that brought about 200 new Twitter followers! I'm grateful for the education community here.